Early schooling in a child's mother tongue, as recommended in the new National Education Policy, can improve learning, increase student participation and reduce the number of dropouts, according to an IndiaSpend analysis of evidence from around the world. However, this would need new books, fresh teacher training and more funding, experts said. Also, given the multiplicity of languages and dialects in India, it is difficult to home in on the one that can be used as the medium of instruction in an area.